Earthquakes intro

An earthquake is

• A break in the asthenosphere and shake of the lithosphere

• Shake of earth's surface due to a break of the crust and release of energy

• movement of the earth surface

• shake of the crust

Answer explanation

Earthquakes happen due to a break in the crust. The energy is released and transmitted by seismic waves

Tags

NGSS.MS-ESS3-2

Earthquake happens

• Anywhere in earth surface

• In the middle of tectonic plates and close to hot spots

• At plate boundaries

• In convergent plate boundaries

Answer explanation

Most of earthquakes happen at all three type of plate boundaries. They are more abundant and strong at convergent boundaries

The box with the letter A points to

Answer explanation

Seismic waves, radiate in all directions from the focus.

Tags

NGSS.MS-ESS3-2

NGSS.MS-PS4-2

D is called :

Answer explanation

The focus is a point under subsurface where the earthquake originated.

Tags

NGSS.MS-ESS2-2

D is:

• The point where the earthquake originated

• The point where the seismic waves originated

• The point where the crust break

• Alll the answers are correct

Answer explanation

There is a point where the rupture of the crust takes place. One the break happens the energy is released from that point and transmitted in a radial pattern by seismic waves

Tags

NGSS.MS-ESS3-2

The box label as C is called:

Answer explanation

The epicenter is the point directly above the focus at the surface of the earth.

Tags

NGSS.MS-ESS3-2

The plate boundary that produce the most dangerous earthquakes is:

Answer explanation

Earthquakes at divergent boundaries are less intense that the earthquakes produced at convergent boundaries

Tags

NGSS.MS-ESS3-2

A break of the crust where there is no block displacement is called a

• Fault

• fracture

• break

Answer explanation

Fractures and joins do not have displacement or relative movement of the blocks.

Faults have movement of the blocks

A break in the crust where there is displacements is called:

• A fault

• A join

• A break

• A fracture

Answer explanation

Fractures and joins do not have displacement or relative movement of the blocks.

Faults have movement of the blocks

Tags

NGSS.MS-ESS1-4

The type of stress that shortens earth crust is

• tension

• shear

• differential pressure

• compression

Answer explanation